CR Style 50x70x8 Rotary Shaft Seal (R21/R4) - NBR Industrial Grade Oil Seal
The 50x70x8 Rotary Shaft Seal, designed in the robust CR/SKF style (R21/R4 profile), is the standard industrial solution for high-performance fluid retention and contamination exclusion. Manufactured with durable Nitrile Butadiene Rubber (NBR), this seal is perfectly suited for use in mineral oils, grease, water, and mild hydraulic fluids across a broad temperature range (-30°C to 100°C). Featuring a precisely molded sealing lip and a reliable garter spring, this component ensures consistent radial load against the 50mm shaft, providing a positive seal integrity even during minor shaft misalignment or vibration. Its 70mm outer diameter provides a secure, press-fit into standardized industrial housings, critical for preventing external leakage in demanding environments like gearboxes, pumps, and motors.
Investing in a high-quality seal like the 50X70X8 significantly minimizes premature equipment failure and costly maintenance downtime. This standardized size and premium construction make it an ideal replacement for OEM applications requiring reliable fluid containment in heavy-duty machinery, agriculture, and construction equipment. Our seals meet strict ISO and DIN standards for dimensional accuracy and material quality, guaranteeing long operational life and compatibility with existing setups. Ensure maximum operational efficiency and protection against abrasive dust, dirt, and moisture ingress by specifying this high-performance NBR oil seal for your critical industrial rotating assemblies.
Key Features
Precision-engineered NBR material suitable for mineral oils and grease.
Garter spring ensures consistent radial sealing load throughout service life.
Standardized dimensions (50mm shaft / 70mm bore) for high compatibility and easy replacement.
Effective protection against dust, dirt, and external contamination ingress.
Designed to high CR/SKF standards for reliability in heavy-duty industrial applications.
Low friction coefficient minimizes heat generation and power loss.
